28111067047 has 8 divisors (see below), whose sum is σ = 32130971136. Its totient is φ = 24092172312.

The previous prime is 28111066999. The next prime is 28111067051. The reversal of 28111067047 is 74076011182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28111067047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28111066997 and 28111067015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28111007047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191683 + ... + 304900.

It is an arithmetic number, because the mean of its divisors is an integer number (4016371392).

Almost surely, 2^28111067047 is an apocalyptic number.

28111067047 is a deficient number, since it is larger than the sum of its proper divisors (4019904089).

28111067047 is an equidigital number, since it uses as much as digits as its factorization.

28111067047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504677.

The product of its (nonzero) digits is 18816, while the sum is 37.

The spelling of 28111067047 in words is "twenty-eight billion, one hundred eleven million, sixty-seven thousand, forty-seven".